Abstract: A perforated plastic film is produced by forming a pattern of light absorbing material (e.g., in dot and/or circular forms) on the film and subjecting the printed film to radiant energy from a light source in order to melt the film areas covered with the light absorbing material, thus producing a corresponding plurality of perforations in the plastic film.
Abstract: A composition useful in supplemental oil recovery from subterranean geological formations which composition includes a lignosulfonate that has been reacted with a halocarboxylic acid in an aqueous alkaline medium; and the process of introducing this composition into subterranean formations and reservoirs for the purpose of recovering additional petroleum therefrom.
Abstract: A novel composition of matter for use as image transfer medium in the form of a viscous or semi-viscous solution. The composition basically consists of water, a thixotropic agent (hydroxyethyl cellulose) and a water-soluble glycol (1,3-butylene glycol) and includes, optionally, a water-insoluble glycol (hexanediol) to enhance the color of printed color matter. Images imprinted on putty-like substances may be transferred to surfaces which have been coated with such compositions.
Abstract: A novel composition of matter having highly effective antibacterial and antifungal activity as well as other desirable pharmacological properties. The composition is a mixture of a sulfonamide (e.g., toluene sulfonamide), an alkylene glycol in which the alkylene moiety contains 5 to 8 carbon atoms (e.g., hexylene glycol or octylene glycol) and an alkylene glycol ester of an alkylene oxide and a dicarboxylic acid (e.g., propylene oxide ester of sebacic acid).
Abstract: A hermetically sealed pouch, being safe for the storage of foods, avoiding giving a taste to enclosed food, the filled pouch being able to withstand cooking temperatures typically used to cook food.
Type:
Grant
Filed:
January 22, 1981
Date of Patent:
February 1, 1983
Assignee:
American Can Company
Inventors:
William F. Ossian, Thomas S. Wildenberg, Henry Warmbier